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/*
* Check decoding of ipc syscall.
*
* Copyright (c) 2016-2018 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2016-2023 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include "scno.h"
#if defined __NR_ipc && defined HAVE_LINUX_IPC_H
# include <errno.h>
# include <stdio.h>
# include <unistd.h>
# include <linux/ipc.h>
# ifndef SEMCTL
# define SEMCTL 3
# endif
# ifndef MSGRCV
# define MSGRCV 12
# endif
static int
ipc_call(const unsigned short version, const unsigned short call,
long a1, long a2, long a3, long a4, long a5)
{
const unsigned long val =
(unsigned long) 0xfacefeed00000000ULL |
(unsigned int) version << 16 |
call;
return syscall(__NR_ipc, val, a1, a2, a3, a4, a5);
}
static int
ipc_call0(const unsigned short version, const unsigned short call)
{
int rc = ipc_call(version, call, 0, 0, 0, 0, 0);
int saved_errno = errno;
printf("ipc(");
if (version)
printf("%hu<<16|", version);
errno = saved_errno;
printf("%hu, 0, 0, 0, 0%s) = %s\n", call,
# ifdef __s390__
"",
# else
", 0",
# endif
sprintrc(rc));
return rc;
}
int
main(void)
{
void *const efault = tail_alloc(1) + 1;
int rc = ipc_call(0, SEMCTL, 0, 0, 0, (long) efault, 0);
if (rc != -1 || EFAULT != errno)
perror_msg_and_skip("ipc");
printf("semctl(0, 0, IPC_RMID, %p)" RVAL_EFAULT, efault);
for (unsigned short call = 0; call <= 40; call += 10) {
ipc_call0(0, call);
ipc_call0(42, call);
}
rc = ipc_call(42, SEMCTL, 0, 0, 0, (long) efault, 0);
int test_version = EFAULT == errno;
if (test_version)
printf("semctl(0, 0, IPC_RMID, %p) = %s\n",
efault, sprintrc(rc));
else
printf("ipc(42<<16|SEMCTL, 0, 0, 0, %p) = %s\n",
efault, sprintrc(rc));
if (test_version) {
const int msqid = -2;
const long msgsz = -3;
const long msgtyp = 0;
rc = ipc_call(1, MSGRCV,
msqid, msgsz, IPC_NOWAIT, (long) efault, msgtyp);
printf("msgrcv(%d, %p, %lu, %ld, IPC_NOWAIT) = %s\n",
msqid, efault, msgsz, msgtyp, sprintrc(rc));
}
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_ipc && HAVE_LINUX_IPC_H")
#endif
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